SRAM SL-500 Aero Shifter SetThe SRAM SL-500 Aero Shifter Set brings you high quality TT shifting at a more economical price. They feature lightweight aluminium shifting blades that are ergonomically shaped to fit comfortably in the hand and are equipped with SRAM's Exact Actuation shifting. The SL-500 shifters provide precise and ultra quick changes, so you can just get on with winning!Features: Material: Aluminium Shifter type: Aero/Time Trial Recommended Group: SRAM Rival Cable pull ratio: Exact actuation, front shifter compatible with SRAM YAW chainrings Also compatible with SRAM RED, SRAM Force and SRAM Apex drivetrains Weight: 154gTechnology:Exact Actuation - When SRAM launched their road technology from scratch they reapplied their MTB proven SRAM 1:1 actuation ratio (shifter cable travel: derailleur movement). Exact Actuation helps to simplify and stabilise the uneasy act of balancing rear derailleur hanger design, tight cog spacing, and exact cable tension. The result: the easiest index shifting system to set up—and it stays that way.Buy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.